US2312703A - Reaction product of aldehydes and diazine derivatives - Google Patents

Description

Patented Mar. 2, 1943 v UNITED STATES PATENT- OFFICE REACTION PRODUCT OF ALDEHYDES' AND DIAZINE DERIVATIVES Gaetano F, DAlelio, Pittsfleld, Mass, asslgnor to mpany, a corporation of.

General Electric Co New York No Drawing. Application December 31, 1941,

Serial N0. 425,161

20 Claims.

sents a member of the class consisting of oxygen .and sulfur, Y represents a divalent carbocyclic radical, and R represents a member of the class consisting of hydrogen and monovalent hydrocarbon and substituted hydrocarbon radicals,

- more particularly halo-hydrocarbon radicals. Since 11. represents an integer which is 1 or 2, it will be seen that the linkage of the hydroxycar- V bocyclic-carbanrvl-alkyl or hydroxycarbocyclicthiocarbamyl-alkyl grouping to the sulfur atom in all cases will be alpha or beta to the hydroxycarbocyclic-carbam'yl or -thiocarbamyl grouping. It also will be observed that linkage of the diazinyl grouping to the sulfur atom is through a carbon atom.

Illustrative examples of radicals that R in the above formula may represent are: aliphatic (e. g., methyl, ethyl, propyl, isopropyl, allyl, butyl, secondary butyl, isobutyl, butenyl, amyl, isoamyl, hexyl, etc.), including cycloaliphatic (e. g., cyclopentyl, cyclopentenyl, cyclohexyl, cyclohex enyl, 'cycloheptyl, etc.); aryl (e. g., phenyl, diphenyl or xenyl, naphthyl, etc.); aliphatic-substituted aryl (e. g., tolyl, xylyl, ethylphenyl, propylphenyl, isopropylphenyl, allylphenyl, 2-butenylphenyl, tertiary-butylphenyl, etc.); arylsubstituted aliphatic (e. g., benzyl, phenylethyi, phenylisopropyl, cinnamyl, etc.) and their homologues, as well as those groups with one or more or theirhydrogen atoms substituted by, for'example, a halogen. Specific examples of halogeno-substituted hydrocarbon radicals are chloromethyl, chlcroethyl, chlorophenyl, dichlorophenyl, chlorocyclohexyl, ethyl chlorophenyl,

Specifically the inphenyl chioroethyl, bromoethyl, bromopropyl, bromotolyl, etc. Preferably R. in Formula I is hydrogen. Also especially suitable for use in carrying the present inventioninto effect are diazine derivatives corresponding to. the general formulas 'L n J and, mor particularly,

where 11., Z, Y and R have the same meanings as above given with reference to Formula I.

Illustrative examples of divalent carbocyclic radicals that Y in Formulas I, II and III may represent are: divalent aryl, e. g., phenylene, xenylene, naphthylene, etc., divalent aliphaticaryl, e. g., 2,5-tolylene, para-(2,3-xylylene) etc.; divalent cycloaliphatic, e. g., cyclopentylene, cyclohexylene, cyclopentenylene, cyclohexenylene, cycloheptylene, etc.; and their homologues, as well as those divalent carbocyclic radicals with. one or more of their hydrogen atoms replaced by a substituent, e. g., halogeno, amino, acetyl, acetoxy, carbalkoxy, alkoxy, aryloxy, sulfamyl, allql, alkenyl, a hydroxy group or groups in addition to the single OH group shown in the aboveformulas, etc. Specific examples of substituted divalent carbocyclic radicals are chlorophenylene, bromophenylene, chloronaphthylene, bromonaphthylene, bromo 2,5-to1ylene, chlorocyclopentylene, chlorocyclopentenylene, carbomethoxyphenylene, ethoxyphenylene, acetophem'lene, acetoxyphenylene, bromocyclopentylg ene, aminophenylene, phenoxyphenylene, sulfamylphenylene, methylphenylene (tolylene), allylphenylene, etc. Preferably Y is phenylene or methylphenylene.

Instead of the 1,3- or meta-diazine deriva tives represented by the above formulas, the corresponding 12- or ortho-diazines (pyridazines) or the 1,4- or para-diazines (pyrazines) may be used. Also, instead of the diazinyl monosulfides represented by the above formulas, the

The diazine derivatives that are used in carrying the present invention into effect are more fully described and are specifically claimed in my copending application Serial No. 422,721, filed December 12, 1941, and assigned to the same assignee as the present invention. As pointed out in this copending application, a suitable method of preparing the diazine derivatives employed in practicing the present invention comprises effecting reaction between a mercapto diamino [(-NHR)2] pyrimidine and a hydroxycarbocyclic-carbamyl-alkyl halide (or a hydroxycarbocyclic-thiocarbamylalkyl halide) in the presence of a hydrohalide acceptor, e. g., an alkalimetal hydroxide. When the starting components, proportions thereof and reaction conditions are such that the hydrogen atom of the -OH group of the hydroxycarbocyclic compound is replaced by the residue of the hydrohalide acceptor, e. g., by an alkali metal, the hydroxy compound desired as a final product is obtained by treating this intermediate product with hydrochloric, hydrobromic, sulfuric, or other suitable organic or inorganic acid in an amount just sufiicient to form the desired hydroxy derivative.

Specific examples of diazinyl hydroxycarbo cyclic-carbamyl-alkyl sulfides and diazinyl hydroxycarbocyclic thiocarbamyl alkyl sulfides that may be used in producing my new condensation products are listed below:

The diamino pyrimidyl (specifically the 4,6-diamino pyrimidyl-2 and the 2,6-diamin pyrimidyl-4) ortho-, metaand para-hydroxyphenyl-carbamyl-methyl sulfides The diamino pyrimidyl ortho-, metaand parahydroxyphenyl-thiocarbamyl-methyl sulfides The diamino pyrimidyl ortho-, metaand parahydroxytclyl-carbamyl-methyl sulfides The diamino pyrimidyl ortho-, metaand parahydroxytolyl-thiocarbamyl-methyl sulfides The di-(methylamino) pyrimidyl ortho-, metaand para hydroxyphenyl carbamyl methyl sulfides The di-(ethylamino) pyrimidyl ortho, metaand para-hydroxyphenyl-thiocarbamyl-methyl sulfides The di-(anilino) pyrimidyl ortho-, metaand para-hydroxytolyl-carbamyl-methyl sulfides The di- (cyclohexylamino) metaand para-hydroxytolyl-thiocarbamylmethyl sulfides The diamino pyrimidyl alpha-(ortho-, metaand pyrimidyl ortho-, I

The di-(prcpylamino) pyrimidyl beta-(ortho-,

metaand para -hydroxyphenylcarbamylethyl) sulfides The di- (anllino) pyrimidyl alpha-(ortho-, metaand para-hydroxytolyl-carbamyl-ethyi) sulfides The (11- (cycloheptylamino) pyrimidyl beta- (ortho-, metaand para-hydroxytolyl-carbamyl-ethyl) sulfides The di-(ethylamino) pyrimidyl alpha-(ortho-,

metaand para-hydroxyphenyl-thiocarbamylethyl) sulfides The diamino pyrimidyl 5-alkyl (e. g., methyl, ethyl, propyl, butyl, etc.) ortho-, metaand para-hydroxyphenylcarbamyl-methyl sulfides The diamino pyrimidyl S-carbocyclic (e. g.,

phenyl, xenyl, naphthyl, chlorophenyl, iodotolyl, cyclohexyl, etc.) ortho-, metaand parahydroxytolyl-carbamyl-methyl sulfides 4,6-di- (iodophenylamino) pyrimidyl-2 parahydroxyphenyl-carbamyl-methyl sulfide 4-amino fi-fiuorotoluido pyrimidyl-2 ortho-hydroxytolyl-carbamyl-methyl sulfide 4-(3-butenylamino) G-methylamino pyrimidyl-2 hydroxyphenyl carbamyl (phenyl) methyl sulfide The diamino pyrimidyl 5-haio-aliphatic (e. g.,

chloroethyl, bromocycloheptyl, chloroallyl, bromopropyl, chlorocyclohexenyl, bromoallyl, iodocycloheptyl, etc.) ortho-, metaand parahydroxyphenyl-carbamyl-methyl sulfides 4-chloroethylamino G-methylamino pyrimidyl-2 alpha (para hydroxyphenyl thiocarbamyipentyl) sulfide 4-cyclohexenylamino 6-naphthylamino pyrimidyl-2 hydroxyphenyl- (chloroethyl) -carbamylmethyl sulfide 4-chlorocyclopentylamino G-toluido pyrimidyl- 2 hydroxycyclohexyl (phenyl) carbamylmethyl sulfide 4-bromotoluido 6-benzylamino pyrimidyl-2 hydroxycyclopentyl-carbamyltolyi) -methyl sulfide 4-xenylamino fi-cyclopentyl 6-pentylamino pyrimidyl-2 hydroxyphenyl- (methyl) -carbamylmethyl sulfide 2-penty1amino 4-chlorophenylamino pyrimidyl-6 hydroxytolyl-carbamyl-(cyclopentyl) methyl sulfide 2-dichloroanilino 4-propylamino 5-to1yl pyrimidyl-6 hydroxytolyl-(butyl) -carbamyl methyl sulfide 4-butylamino 6-brom0naphthylamino pyrimidy1 2 hydroxycyclohexenyl (phenylpropyl) carbamyl-(chlorocyolopentenyl) -methyl sulfide 4-propylanilino 5-benzyl 6-benzylamino pyrimidyl-2 hydroxycyclopentyl carbamyl (tolyi) methyl sulfide 4-ethylanilino 5-naphthyl 6-xylidino pyrimidyl-2 hydroxycyclohexyl- (phenyl) -carbambyl-methyl sulfide 4-chloroxenylamino 6-amino pyrimidyl-2 hydroxytolyl- (chloroethyl) -carbamyl-methyl sulfide It will be understood, of course, by those skilled in the art that diamino pyrimidyl" as used broadly in naming some of the above-mentioned compounds includes within its meaning both the 4,6-diamino pyrimidyl-2 and the 2,6-diamino pyrimidyl-4 (2,4-diamlno pyrimidyl-6) compounds.

Additional examples of diazine derivatives that may be employed in producing the new condensation products of the present invention are given in my above-identified copending application :Serial No. 422,721.

The present invention is based on! my discovery that new and valuable materials ofparticular utility in the plastics and coating arts can' be produced by effecting reaction between ingredients comprising essentially an aldehyde, including polymeric aldehydes and aldehyde-Paddition products, and certain diazinyl hydroxycarbocyclic-carbamyl (or thiocarbamyD-alkyl sulfides, numerous examples of which have been given above and in the above-identified copending application.

"Resins heretofore have been made by condensing an aldehyde with certain pyrimidine thicganic acids'such as hydrochloric, sulfuric, phosethers, but such known resins are not entirely satisfactory from the standpoint of optimum heatand abrasion-resistance and in curing characteristics. One possible explanation for these deficiencies in desirable properties is'the fact that the starting material contains thio groups that are aldehyde-'non-reactable. In marked contrast the starting organic sulfides used in practicing this invention contain aldehyde-reactable thio groups attached to the diazine nucleus, thereby imparting to the condensation products of such sulfides with aldehydes increased heatand abrasion-resistance and improved curing characteristics as compared with resinous condensation products of an aldehyde and the pyrimidine thioethers heretofore used. 1

Resins also have been made heretofore by condensing an aldehyde, e. g., formaldehyde, with a hydroxycarbocyclio compound, e. g., a phenol. The well-known phenol-aldehyde synthetic resins are typical examples of such condensation products. Although these resins have a wide field of utility,'there are many applications for which they are unsuited, for instance Where lightness of color or high are resistance are desired. The resins of the present invention combine in one product the desirable properties of the phenolaldehyde condensation products, while at the same time providing a material of more desirable properties, e. g., improved color and higher are resistance, than the phenol-aldehyde resins.

In carrying my invention into effect the initial condensation reaction may be carried out at normal or at elevated temperatures, at atmospheric, sub-atmospheric or super-atmospheric pressures, and under neutral, alkaline or acid conditions. Preferably the reaction between the components is initiated under alkaline conditions.

Any substance yielding an alkaline or an acid aqueous solution may be used in obtaining alkaline or acid conditions for the initial condensation reaction. For example, I may use an alkaline substance such as sodium, potassium or calcium hydroxides, sodium or potassium carbonates, mono-, dior tri-amines, etc. In some cases'it is desirable to cause the initial condensation reaction between the component to take place in the presence of a primary condensation catalyst and a secondary condensation catalyst. The primary catalyst advantageously is either an aldehyde-non-reactable nitrogen-containing basic tertiary compound, e. g., tertiary amines such as trialkyl (e. g., trimethyl, triethyl, etc.) amines, triaryl (e. g., triphenyl, tritolyl, etc.) amines, etc., or an aldehyde-reactable nitrogencontaining basic compound, for instance ammonia, primary amines (e. g., ethyl amine, propyl amine, etc.) and secondary amines (e. g., dipropyl amine, dibutyl amine, etc.). The secondary condensation catalyst, which ordinarily phoric, acetic, lactic, acrylic, malonic, etc., or acid salts such as sodium acid sulfate, monosodium phosphate, monosodium phthalate, etc. Mixtures of acids, of acid salts or of acids and of acid salts may be employedif desired.

The reaction between the aldehyde; e. g., formaldehyde, and the diazine derivative may be carrled out in the presence of solvent or diluents, fillers, other natural or synthetic resinous bodies. or while admixed with other materials that also can react with the aldehydic reactant or with the diazine derivative,.e. g., ketones, urea (NHaCONHz) monoamide, diamide and triamide ottrica'rbalilylic acid, etc.; aldehyde-reactable dlazines other than the diazine derivatives constituting the primary components of the resins of the present invention; aminotriazines, e. g., melamine, ammeline, ammelide, melem, melam, melon, numerous other examples being given in various copending applications of mine, for instance in' application Serial No. 377,524, filed February 5, 1941, and in applications referred to in said copending application; phenol and substituted phenols, e. g., the cresols, the xylenols, the tertiary alkyl phenols and other phenols such as men:

tioned in my Patent No. 2,239,441; monohydric and polyhydric alcohols, e. g., butyl alcohol, amyl alcohol, ethylene glycol, glycerine, polyvinyl, alcohol, etc.; amines, including aromatic amines, e. g., aniline, etc.; and the like.

The modifying reactants may be incorporated with the diazine derivative and the aldehyde by mixing all the reactants and eifecting condensation therebetween or by various permutations of reactants as described, for example, in my copending application Serial No. 363,037 with particular reference to-reactions involving a urea, an aldehyde and a semi-amide of oxalic acid. For instance, I may form a partial condensation product of ingredients comprising (1) urea or melamine or urea and melamine, (2) a diazine derivative of the kind herein described (for example, a diamino pyrimidyl, more particularly a 4,6- diamino pyrimidyl-2 or a 2,6-diamino pyrimidyl- 4, ortho-, metaor para-hydroxyphenyl-carbamyl-methyl sulfide, a diamino pyrimidyl ortho-, metaor para-hydroxytolyl-carbamyl methyl sulfide, etc.) and (3) an aldehyde, including polymeric aldehydes, hydroxyaldehydes and aldehydeaddition products, for instance formaldehyde,

paraformaldehyde, glyceraldehyde, dimethylol urea, a polymethylol melamine, e. g.,hexamethmaleic monoamide, malonic ylol melamine, etc. and thereafter eflect reaction between this partial condensation product and, for example, a curing reactant, specifically a chlorinated acetamide, to obtain a heat-curable composition.

Some of the condensation products of this invention are thermoplastic materials even at an advanced stage of condensation, while others are thermosetting or potentially thermosetting bodies that convert under heat or under heat and pressure to an insoluble, infusible state. The thermoplastic condensation products are of particular value as plasticizers for other synthetic resins. The thermosetting or potentially thermosetting condensation products, alone or mixed with fillers, pigments, dyes, lubricants, plasticizers, curing agents, etc., may be used, for example, in the production of molding compositions.

The heat-curable resinous condensation products of this invention show excellent flow charaeteritsics during a. short curing cycle. This is a property that is particularly desirable in a molding compound. The molded articles have a high dielectric strength and excellent resistance to arcing. They have a good surface finish and, in general, are better than the ordinary ureaformaldehyde resins in resistance to water.

Depending upon the particular conditions of reaction and the particular reactants employed, the intermediate or partial condensation products vary from clear, colorless or colored, syrupy, water-soluble liquids to viscous, milky dispersions and gel-like masses of decreased solubility in ordinary solvents, e. g., alcohol, dioxane, Cellosolve, ethylene glycol, glycerine, etc. These liq uid intermediate condensation products may be concentrated or diluted further by the removal or addition of volatile solvents to form liquid coating compositions of adjusted viscosity and concentrations. The heat-convertible or potentially heat-convertible resinous condensation products may be used in liquid state, for instance as surface coating materials, in the production of paints, varnishes, lacquers, enamels, etc., for general adhesive applications, in producing laminated articles and for numerous other purposes. The liquid heat-hardenable or potentially heathardenable condensation products also may be used directly as casting resins, while those which are of a gel-like nature in partially condensed state may be dried and granulated to form clear,

unfilled heat-convertible resins.

In order that those skilled in the art better may understand how this invention may be carried into efiect, the following examples are given by way of illustration. All parts are by weight.

(0.5 N) 1.0 Water 40.0 chloroacetamide (monoehloroacetamide) 0.3

All of the above components with the exception of the chloroacetamide were mixed and allowed to stand with intermittent shaking for 70 minutes. The chloroacetamide was added and the mixture was allowed to stand for an additional 3 minutes, followed by heating under reflux at the boiling temperature of the mass for another 3 minutes. The resulting partial condensation product was mixed with 27 parts alpha cellulose in flock form and 0.1 part of a mold lubricant, specifically zinc stearate. to form a molding (moldable) composition. The resulting composition was dried at room temperature until suflicient moisture had been removed to provide a material that could be molded satisfactorily. A sample of the dried and powdered molding composition was molded into the form of a disk, using a molding time of 7 minutes, a temperature of C. and a pressure of 5,600 pounds per square inch. The disk was removed hot from the mold and did not become warped or distorted upon cooling to room temperature. The molding compound showed excellent flow during molding. The molded piece was well cured throughout and had a well-knit and homogeneous structure. The molded disk was tested for its water-resistance characteristics by immersing it in boiling water for 15 minutes, followed by immersion in cold water for 5 minutes. It absorbed only 2.9% by weight of water on this accelerated test.

Instead of using chloroacetamide in accelerating the curing of the potentially reactive resinous material, heat-convertible compositions may be produced by adding to the partial condensation product (in syrupy or other form) direct or active curing catalysts (e. g., citric acid, phthalic anhydride, malonic acid, oxalic acid, etc.), or latent curing catalysts (e. g., sodium chloroacetate, N-diethyl chloroacetamide, glycine ethyl ester hydrochloride, etc.), or by intercondensation with curing reactants other than monochloroacetamide (e. g., diand tri-chloroacetamides, chloroacetonitriles, alpha beta dibromopropionitrile, aminoacetamide hydrochloride, ethylene diamine monohydrochloride, the ethanolamine hydrochlorides, nitrourea, chloroacetyl urea, chloroacetone, glycine, sulfamic acid, citric diamide, phenacyl chloride, etc.). Other examples of active and latent. curing catalysts and of curing reactants that may be employed to accelerate or to eifect the curing of the thermosetting or potentially thermosetting resins of this and other examples are given in various copending applications of mine, for instance in copending applications Serial No. 346,962, filed July 23, 1940, and Serial No. 354,395, filed August 27, 1940, both of which applications are assigned to the same assignee as the present invention.

Example 2 Parts 4,6 diamino pyrimidyl 2 ortho hydroxyphenyl-carbamyl-methyl sulfide 29.2 Aqueous formaldehyde (approx. 37.1%

HCHO) 48.6 Aqueous ammonia (approx. 28% NHJ) 1.5

Aqueous solution of sodium hydroxide (0.5 N) 1.0 Water 40.0 Chloracetamide 0.3

All of the above ingredients with the exception of the chloroacetamide were heated together under reflux at the boiling temperature of the mass for 10 minutes. A molding composition was made from the syrupy condensation product by mixing therewith the above-stated amount of chloroacetamide, 27 parts alpha cellulose and 0.1 part zinc stearate. The wet composition was dried as described under Example 1. A sample of the dried and ground molding compound was molded for 5 minutes at 140 C. under a pressure of 4,500 pounds per square inch. The molded pyce was homogeneous, was well cured tln'oughout and had a well-knit structure. when tested for its water-resistance characteristics as described under Example 1, it absorbed only 2.4% by weight of water. The molding compound showed good flow characteristics during molding.

Example 3 Parts 4,6 diamino pyrimidyl 2 ortho hydroxyphenyl-carbamyl-methyl sulfide. 14.6 Urea 30.0 Aqueous formaldehyde (approx. 37.1%

HCHO) 89.1 Aqueous ammonia (approx. 28% NHs) 3.5 Aqueous solution or sodium hydroxide (0.5 N) 2.0 Chloroace mi e 0.4

were heated together under reflux at boiling temperature for 3 minutes. The resulting syrup was mixed with 49.5 parts alpha cellulose and 0.3 part zinc stearate to form a molding composition. The wet composition was dried at room temperature as described under Example 1. A sample of the dried and ground molding compound was molded for minutes at 140 C. under a pressure of 8,000 pounds per square inch. A well-cured molded piece having a well-knit and homogeneous structure was obtained. ,Good plasticity.

during molding was shown by the amount of flash on the molded article.

Example 4 All or the above components with the exception of the chloroacetamide were heated together under reflux for 1 minute. The resulting syrupy condensation product was mixed with the above- 5 stated amount of chloroacetamlde, 32.5 parts alpha cellulose in flock form and 02 part zinc stearate. The wet molding composition thereby produced was dried at room temperature as described under Example 1. A well-molded piece was obtained by molding a sample ,0! the dried and ground molding compound for 5 minutes at 140 C. under a pressure of 8,000 pounds per square inch.

Example 6 N) 2.0 Water 80.0 1 Chloroacetamide 0.4

1 were heated together under reflux at boiling temperature for 6 minutes, at the end of which period of time the syrupy condensation product began to cloud. A molding compound was prepared by mixing the resin syrup with 53.5 parts alpha Parts cellulose and 0.3 part zinc stearate. The wet 4.6 -diammo pyrim1dyl-2 para-hydroxycomposition was dried at room temperature as ggffifgg sulfide described under Example 1. A sample of the dried and-ground moldingcompound was molded fig- 2 formaldehyde (approx' 371% 97 2 for 5 minutes at 140 C. under a pressure of 4,500 Aqueous ammonia (approx. 28% pounds per square inch. The molded piece was Aqueous solution of sodium hydroxide (0.5 N) Chloroacetamide 0.3

All of the above ingredients with the exception of the chloroacetamide were heated together under reflux at boiling temperature for 13 minutes. The resinous syrup initially was clear but began to cloud toward the end of the reflux period. The syrupy condensation product was mixed with the abovestated amount of chloroacetamide, 51.5 parts alpha cellulose and 0.3 part zinc stearate to form a molding compound. The wet composition was dried at room temperature as described under Example 1. A sample of the dried and ground compound was molded for 5 minutes at 140 C. under a pressure of 5,600 pounds per square inch. The molding compound showed good plastic flow during molding. The molded piece was well cured as shown by the fact that it absorbed only 0.46% by weight of water when tested for its water-resistance characteristics as described under Example 1. The molded product had a homogeneous and well-knit structure.

40 well cured throughout and had a well-knit and homogeneous structure. It had very good water resistance, as shown by the fact that it absorbed only 1.46% by weight of water when tested as described under Example 1. The molding compound showed good plastic flow during molding.

7O temperature of 140 C. and a molding pressure of 6,750 pounds per square inch. A well-molded piece was obtained. The molded article was extracted hot from the mold and did not become distorted upon cooling to room temperature.

using a molding time of 5 minutes, a molding Example 8 Example 11 Parts Parts 4,6-diamino pyrimidyl-2 para hydroxy- 4,6-dlamlno pyrimidyl-2 ortho-hydroxyphenphenyl-carbamyl-methyl sulflde 14.6 ylcarbamyl-methyl sulfide" 43.6 l-carbamyl guanazole 14.2 5 Butyl alcohol 74.0 Aqueous formaldehyde (approx. 37.1% Aqueous formaldehyde (approx. 37.1%

I-ICHO) 40.5 HCHO) 81.0 Aqueous ammonia (approx. 28% NH:) 1.5 Aqueous ammonia (approx. 28% NHa) 3.0 Aqueous solution of sodium hydroxide (0.5 Aqueous solution of sodium hydroxide (0.5

Chloroacetamide 0.3

All of the above components with the exception of the l-carbamyl guanazole and the chloroacetamide were heated together under reflux until solution was effected. The l-carbamyl guanazole was now added and the resulting product was mixed with the above-stated amount of chloroacetamide, 24.0 parts alpha cellulose and 0.1 part zinc stearate. The wet compound was dried at room temperature as described under Example 1.

Samples of the dried and ground compound were molded as described in the previous example, yielding well-molded pieces.

Example 9.

Parts 4,6diamino pyrimidyl-2 ortho-hydroxyphenyl-carbamyl-methyl sulfide 87.6 Furfural 192.0 Aqueous ammonia (approx. 28% NHs) 3.0

Aqueous solution of sodium hydroxide (0.5

Example 10 Parts 4,6-diamino pyrimidyl-2 para-hydroxyphenylcarbamyl-methyl sulfide 43.6 Acrolein 84.0

Aqueous solution of sodium hydroxide (0.5

N) 2.0 Water 50.0

When the above ingredients were heated together under reflux for 3 minutes a yellow resin separated from the solution. When a sample of this resin was heated on a 140 C. hotplate it could be drawn into fibers several inches in length. These fibers were brittle on cooling, but

this fiber-forming characteristic indicated that the resinous composition of this example could be extruded or could be used as a modifier of other fiber-forming compositions. The resin was potentially heat-curable, as indicated by the fact that when chloroacetamide, glycine, phthalic monoamide, aminoacetamide hydro chloride, phenacyl chloride and other curing agents such as mentioned under Example 1 were added to the resin, followed by heating on a 140 C. hotplate,

the resin cured rapidly to an insoluble and in-.

fusible state. The resin of this example to which no curing agent had been added showed excellent thermoplastic properties, indicating that it might be used as a modifier of less plastic aminoplasts to improve their flow characteristics.

were heated together under reflux at boiling tem-- perature for 15 minutes. The resulting syrup was dehydrated at'atmospheric pressure. The dehydrated syrup was soluble in Cellosolve, benzyl alcohol, butyl alcohol, dioxane and ethylene glycol. When a sample of the dehydrated syrup was applied to a glass plate and the coated plate was baked at 70 C. for several hours, a hard, transparent, water-white, water-resistant, smooth and adhering film was formed on the plate. The resinous composition of this example is especially suitable for use in the production or lacquers, enamels and varnishes and other surface-protective coating compositions.

Aqueous solution of sodium hydroxide (0.5

were heated together under reflux for 15 minutes, yielding a clear resinous syrup that clouded upon cooling to room temperature. When a sample of this syrup was heated on a C. hotplate it was converted into a rubbery, semi-iniusible mass. The resinous material could be removed from the hotplate in the form of a film havin good flexibility and cohesive characteristics. The addition of glycine, chloroacetamide and other curing agents such as mentioned under Example 1, followed by heating on a 140 C. hotplate, accelerated the conversion of the resin toward the insoluble and infusible state. The resinous composition of this example may be used as a modifler or rapidly curing aminoplasts to control their flow 0r plasticity characteristics.

Example 13 Parts 4,6-diamino pyrimidyl-2 para-hydroxyphenyl-carbamyl-methyl sulfide 43.6 Glycerine 13.8

Aqueous formaldehyde (approx. 37.1%

HCHO) 121.0 Aqueous ammonia (approx. 28% N111)---" 3.0 Aqueous solution of sodium hydroxide (0.5

2,312,703 inous material or this example make it especially suitable for use in the production of spirit and baking varnishes and other liquid coating compositions. It may be used as a modifier of varnishes of the aminoplast and alkyd-resin types. 7 Example 14 Parts 4,6-diamino pyrimidyl-2 ortho-hydroxyphenyl-carbamyl-methyl sulfide 43.6 Diethyl malonate 24.0 Aqueous formaldehyde (approx. 37.1%

HCHO) 121.0 Aqueous ammonia (approx. 28% NH3) 2.0

Aqueous solution of sodium hydroxide (0.5

were heated together under reflux at boiling temperature for minutes. When a sample of the resulting resinous condensation product was heated on a 140 C. hotplate, the resin set to a semi-infusible mass in the absence or a curing agent. The addition of curing agents such as mentioned under Example 1 to the resin accelerated its conversion to a semi-infusible state and, upon prolonged heating at 140 C., the resin became insoluble and infusible. The resinous composition of this example is especially suitable for use as a plasticizer in molding compounds and coating compositions where products of improved fiow characteristics are desired.

Example Parts 4,6-diamino pyrimidyl-2 para-hydroxyphenyl-carbamyl-methyl sulfide 43.6 Polyvinyl alcohol 6.6

Aqueous formaldehyde (approx. 37.1%

HCHO) 121.0

Aqueous ammonia (approx. 28% NH3) 3.0 Aqueous solution of sodium hydroxide (0.5 N) 3.0 Water 50.0

Example 16 Parts 4,6-diamino pyrimidyl-2 para-hydroxyphenyl-carbamyl-methyl sulfide 29.2 Aqueous formaldehyde (approx. 37.1%

HCHO) 48.6 Aqueous ammonia (approx. 28% NHn) 1.5

Aqueous solution of sodium hydroxide (0.5 N)- 1.0 Water 0 were mixed and shaken atroom temperature for 4 hours, yielding a partial condensation product that bodied to a semi-infusible resinous mass when heated on a 140 C. hotplate.

It will be understood. of course, by those skilled in the art that the reaction between the aidehyde and the diazine derivative may be effected at temperatures ranging, for example, from room temperature to the fusion or boiling temperatures of the mixed reactants or of solutions of the mixed reactants, the reaction proceeding. more slowly at the lower temperatures in accordance with the general laws of chemical reactions. Thus, instead of effecting reaction between the ingredlents at boiling temperatures under reflux as mentioned in many of the examples, the reaction between the components may be carried out at temperatures ranging from room temperature to the boiling temperature using longer reaction periods and, in some cases, stronger catalysts and higher catalyst concentrations.

It also will be understood by those skilled in the art that my invention is not limited to condensation products obtained by reaction of ingredients comprising an aldehyde and the specific diamino pyrimidyl hydroxycarbocyclic-carbamyl-alkyl sulfides named in the above illustrative examples. Thus, instead of 4,6-diamino pyrimidyl 2 ortho hydroxyphenyl carbamylmethyl sulfide and 4,6-diamino pyrimidyl-Z para-hydroxyphenyl-carbamyl-methyl sulfide, I may use 4,6-diamino pyrimidyl-2 meta-hydroxyphenyl-carbamyl-methyl sulfide, the diamino pyrimidyl hydroxytolyl-carbamyl-methyl sulfides, or any other organic sulfide (or mixture thereof) of the kind with which this invention is concerned, numerous examples of which compounds have been given hereinbefore and in my copending application Serial No. 422,721.

In producing these new condensation products the choice of the aldehyde is dependent largely upon economic considerations and upon the particular properties desired in the finished product. I prefer to use as the aldehydic reactant formaldehyde or compounds engendering formaldehyde, e. g., paraformaldehyde, hexamethylene tetramine, etc. Illustrative examples of other aldehydes that may be used are acetaldehyde, propionaldehyde, butyraldehyde, methacrolein, crotonaldehyde, benzaldehyde, furfural, hydroxyaldehydes (e. g., glycollic aldehyde, glyceraldehyde, etc.), mixtures thereof, or mixtures of formaldehyde (or compounds engendering formaldehyde) with such aldehydes. Illustrative examples of aldehyde-addition products that may be employed instead of the aldehydes themselves are the monoand poly-(N-carbinol) derivatives. more particularly the monoand polymethylol derivatives of urea, thiourea, selenourea and iminourea, substituted ureas, selenoureas.

thioureas and iminoureas (numerous examples of which are given in my copending application Serial No. 377,524), monoand poly-(N-carbinol) derivatives of amides of polycarboxylic acids, e. g., maleic, itaconic, fumaric, adipic. malonic, succinic, citric, phthalic, etc., monoand poly-(N-carbinol) derivatives of the aminotriazoles, monoand poly-(N-carbinol) derivatives of the aminotriazines, etc. Particularly good results are obtained with active methylenecontaining bodies such as a methylol urea, more particularly monoand dimethylol ureas, and a methylol melamine, e. g., monomethylol melamine and polymethylol melamines (di-, tri-, tetra-, pentaand ,hexa methylol melamines). Mixtures of aldehydes and aldehyde-addition products may be employed, e. g., mixtures of -formaldehyde and methylol compounds such.

for instance, as dimethylol urea, trimethylol melamine, hexamethylol melamine, etc.

,The ratio of the aldehydic reactant to the diazine derivative may be varied over a wide range depending upon the particular properties desired in the final product. Ordinarily these reactants are employed in an amount corresponding to at least one mol of the aldehyde. specifically formaldehyde, for each mol of the diazine derivative. Thus, I- may use, for example, from 1 to 8 or 9 mols of an aldehyde for each mol of diazine derivative. When the aldehyde is available for reaction in the form of an alkylol derivativ more particularly a methylol derivative such, for instance, as dimethylol urea, trimethylol melamine, etc.. then higher amounts of such aldehyde-addition products are used, for instance, from2or3upto l5 or20mols of such alkylol derivatives for each mol of the diazine derivative.

As indicated hereinbefore, and as further shown by a number of the examples, the properties of the fundamental resins of this invention may be varied widely by introducing other moditying bodies before, during or after effecting condensation between the primary components.

' Thus, as modifying agents I may use, for instance, monohydric alcohols such as ethyl, propyl, isopropyl. isobutyl, hem], etc., alcohols;-polyhydric alcohols such as diethylene glycol, trietlrvlene glycol, pentaerythritol, etc.; amides such as formamide, stearamide, acryloamide, benzamide, toluene sulfonamides, benzene sulfonamides, adipic diamide, phthalamide, etc.; amines such as ethylene diamine, phenylene diamine, etc.: ketones, including halogenated ketones; nitriles, including halogenated nitriles, e. g., acrylonitrile, methacrylonitrile, succinonitrile, chlomacetonitriles, etc.; acylated areas, more particularly halogenated acylated 1111388 0f the kind described, 35

for example, in my copending applications Serial No. 289,273, filed August 9, 1939, now Patent No. 2,281,559, issued May 5, 1942. and Serial No. 400,649, flied July 1, 1941; and others.

The modifying bodies also may take the form of high molecular weight bodies with or without resinous characteristics, for example, hydrolyzed wood products, formalized cellulose derivatives, lignin, protein-aldehyde condensation products, aminotriazine-aldehyde condensation products, aminotriazole-aldehyde condensation products, etc. Other examples of modifying bodies are the urea-aldehyde condensation products, the aniline-aldehyde condensation products, furfural condensation products, phenol-aldehyde condensation products, modified or unmodified, saturated or unsaturated polyhydric alcohol-polycarbonlic acid condensation products, water-soluble cellulose derivatives, natural gums and resins such as shellac, rosin, etc.; polyvinyl compounds such as polyvinyl esters, e. g.. p lyvinyl acetate, polyvinyl butyrate, etc., polyvinyl ethers, including polyvinyl acetals, specifically P lyvinyl formal, etc.

Dyes, pigments, plasticizers, mold lubricants, opaciflers, curing agents and various fillers (e. g., wood flour, glass fibers, asbestos, including defibrated asbestos, mineral wool, mica, cloth cuttings, etc.) may be compounded with the resin in accordance with conventional practice to provide various thermoplastic and thermosetting molding compositions.

The modified or unmodified resinous compositions of this invention have a wide variety of uses. For example, in addition to their use in the production of molding compositions, they may be used as modifiers of other natural and synthetic resins, as laminating varnishes in the production of laminated articles wherein sheet materials, e. 8-. paper. cloth, sheet asbestos, etc., are

coated and impregnated with the resin, superimposed and thereafter united under heat and pressure. They may be used in the production of wire or baking enamels from which insulated wires and other coated products are made, for bonding or cementing together mica flakes to form a laminated mica article, for bonding together abrasive grains in the production of resinbonded abrasive articles such, for instance, as grindstones, sandpapers, etc., in the manufacture of electrical resistors, etc. They also may be employed for treating cotton, linen and other cellulosic materials in sheet or other form. They also may be used as impregnants for electrical coils and for other electrically insulating applications.

What I claim as new and desire to secure by Letters Patent of the United States is:

l. A composition of matter comprising the reaction product of ingredients comprising an aidehyde and a compound corresponding to the general formula where n represents an integer and is at least 1 and not more than 2, Z represents a member of the class consisting of ongen and sulfur, Y represents a divalent carbocyciic radical, and R rep resents a member of the class consisting of hydrogen and monovalent hydrocarbon and halohydrocarbon radicals.

2. A composition as in claim 1 wherein the aldehyde is formaldehyde.

3. A composition as in claim 1 wherein the reaction product is an alkaline-catalyzed reaction product of the stated components.

4. A composition of matter comprising the reaction product of ingredients comprising an aldehyde and a compoimd corresponding to the general formula where n represen an integer and is at least 1 and not more than 2, Z represents a member of the class consisting of oxygen and sulfur, Y represents a divalent carbocyclic radical, and R represents a member of the class consisting of hydrogen and moncvz lent hydrocarbon and halohydrocarbon radical;-

5. A heat-curable esinous composition comprising a heat-convex .ible condensation product of ingredients compr. sing formaldehyde and a compound corresponding to the general formula where Y represents a divalent carbocyclic radical and R represents a member of the class consisting of hydrogen and monovalent hydrocarbon and halo-hydrocarbon radicals.

6. A product comprising the heat-cured resinous composition of claim 5.

7. A resinous composition comprising the prodnot of reaction of ingredients comprising an aidehyde and a diamino pyrimidyl hydroxycarbocyclic-carbamyl-methyl sulfide.

8. A resinous composition comprising the product of reaction of ingredients comprising formaldehyde and a diamino pyrimidyl hydroxyphenyl-carbamyl-methyl sulfide.

9. A resinous composition comprising the product of reaction of ingredients comprising an aldehyde and a diamino pyrimidyl hydroxytolylcarbamyl-methyl sulfide.

10. A composition comprising the product of reaction of ingredients comprising a urea, an aldehyde and a compound corresponding to the general formula where n represents an integer and is at least 1 and not more than 2, Z represents a member of the class consisting of oxygen and sulfur, Y represents a divalent carboxylic radical. and R represents a member or the class consisting of hydrogen and monovalent hydrocarbon and halohydrocarbon radicals.

11. A composition as in claim wherein the urea component is the compound corresponding to the formula NHaCONH: and the aldehyde is formaldehyde.

12. A heat-curable composition comprising the heat-convertible resinous reaction product of (1) a partial condensation product of ingredients comprising formaldehyde and a diamino pyrimidyl hydroxycarbocyclic-carbamyl-methyl sulfide, and (2) a curing reactant.

13. A resinous composition as in claim 12 wherein the curing reactant is a chlorinated acetamide.

14. A product comprising the cured composition of claim 12.

15. A composition comprising the product of reaction of ingredients comprising urea, formaldehyde and a diamino pyrimidyl hydroxyphenylcarbamyl-methyl sulfide.

16. A composition comprising the product of reaction of ingredients comprising a methylol urea and a diamino pyrimidyl hydroxyphenylcarbamyl-methyl sulfide.

17. A composition comprising the product of reaction of ingredients comprising a polymethylol amlno-triazine and a diamino pyrimidyl hydroxyphenyl-carbamyl-methyl sulfide.

18. A composition comprising the product of reaction of ingredients comprising melamine, formaldehyde and a diamino pyrimidyl hydroxyphenyl-carbamyl-methyl sulfide.

19. A resinous composition comprising the product of reaction of (1) a partial condensation product of ingredients comprising urea, formaldehyde and 4,6-diamino pyrimidyl-2 para-hydroxyphenylcarbamyl-methyl sulfide, and (2) a chlorinated acetamide.

20. The method of preparing new condensation products which comprises efiecting reaction between ingredients comprising an aldehyde and a compound corresponding to the general forwhere n represents an integer and is at least 1 and not more than 2, Z represents a member of the class consisting 01 oxygen and sulfur, Y represents a divalent carbocyclic radical, and R represents a member of the class consisting of hydrogen and monovalent hydrocarbon and halohydrocarbon radicals.

GAETANO F. DALELIO.

CERTIFICATE OF commoner. Patent no. 2,312,7o3. March 2, 1&5.

- GAETANO F. DIALELIO.

It is hereby certitiedthat error appears in the printed specification of the above mzmbered patent requiring correction as follows: Page 1, first column, line 51, for "or' before "their" read --of--; page 2, seconii column, line 61, for'cerhambyl" read cal-15ml"; page 5 second colmnn,'lino 51, strike out the comma. after "polyvinyl"; page 1;, first column, line 20-21,- ior "charac teritsics' read "characteristics-- line 60, for "phenylcerbemyl",

reed -phenyl-carbamyl--; page 6, first column, line 147-148, for 'hydroxyphenylcarbemyl' read --hyd.r0xypnez 1yl-carbemy1--; and second column, line 1- 2, in 'hydroxyphenylcarbamyl' reed --.-hydroxyphenyl-carbamyl-; line 68,

for "Celluaolve read -Ce1losolve--; line "(1, for "glute" 'read --plate--;

line 7h, for 'fomeed" read --formed-; page 9, first column, line 25, claim 10 for "carboxylic" read cerhocyclic-q and thot the acid Letters Patent should. be read with this correction therein that the some myconfonn to the record of the case in the Patent Office.

si ned and sealed this 1 m day of m A. n. 191;}.

Henry V15 Aredale, (Seal) A :ting Commissioner. 01' Patents.